One problem related to starter solenoid has been reported for the 2011 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Ford F-150 based on all problems reported for the 2011 F-150.
On 11/25/17 I was travelling on the highway at approximately 65 mph and the truck started bucking and downshifting. I was able to safely pull off at the next exit and park the truck and had to have it towed to a trusted repair shop. The truck was still bucking fairly violently even at slow speeds while I was trying to park it. The truck would also not shift into reverse. Repairs were performed and a transmission shift solenoid and harness was found to be faulty.